(1) Subject to the limitations of (2), an owner or operator may use any one or combination of the mechanisms listed in ARM 17.56.807 through 17.56.811, 17.56.815 through 17.56.817, and 17.56.820 to demonstrate financial responsibility under this subchapter for one or more underground storage tanks.

(2) An owner or operator may use self-insurance in combination with a guarantee only if, for the purpose of meeting the requirements of the financial test under this rule, the financial statements of the owner or operator are not consolidated with the financial statements of the guarantor.